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1 | /* Software floating-point emulation. |
2 | Return -a | |
a334319f | 3 | Copyright (C) 1997,1999 Free Software Foundation, Inc. |
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4 | This file is part of the GNU C Library. |
5 | Contributed by Richard Henderson (rth@cygnus.com) and | |
6 | Jakub Jelinek (jj@ultra.linux.cz). | |
7 | ||
8 | The GNU C Library is free software; you can redistribute it and/or | |
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9 | modify it under the terms of the GNU Lesser General Public |
10 | License as published by the Free Software Foundation; either | |
11 | version 2.1 of the License, or (at your option) any later version. | |
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12 | |
13 | The GNU C Library is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 16 | Lesser General Public License for more details. |
d876f532 | 17 | |
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18 | You should have received a copy of the GNU Lesser General Public |
19 | License along with the GNU C Library; if not, write to the Free | |
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20 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
21 | 02111-1307 USA. */ | |
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22 | |
23 | #include "soft-fp.h" | |
24 | #include "double.h" | |
25 | ||
a334319f | 26 | double __negdf2(double a) |
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27 | { |
28 | FP_DECL_EX; | |
29 | FP_DECL_D(A); FP_DECL_D(R); | |
a334319f | 30 | double r; |
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31 | |
32 | FP_UNPACK_D(A, a); | |
33 | FP_NEG_D(R, A); | |
34 | FP_PACK_D(r, R); | |
35 | FP_CLEAR_EXCEPTIONS; | |
36 | FP_HANDLE_EXCEPTIONS; | |
37 | ||
38 | return r; | |
39 | } |